CN102989328A - Polypropylene film with nano-pore structure, and preparation method thereof - Google Patents
Polypropylene film with nano-pore structure, and preparation method thereof Download PDFInfo
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- CN102989328A CN102989328A CN2011102726688A CN201110272668A CN102989328A CN 102989328 A CN102989328 A CN 102989328A CN 2011102726688 A CN2011102726688 A CN 2011102726688A CN 201110272668 A CN201110272668 A CN 201110272668A CN 102989328 A CN102989328 A CN 102989328A
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Abstract
The invention discloses a polypropylene film with a nano-pore structure. The film is characterized in comprising the components of, by mass, 65-80% of polypropylene, 15-34% of an organic solvent and 1-5% of a pore-forming structure. The pore size of the film is 50-1000nm, and a porosity of the film is 40-60%. The invention also provides a method for preparing the polypropylene film with the nano-pore structure. The method is characterized in that polypropylene is adopted as a substrate of the film, and is dissolved by using the organic solvent; the oleophilic pore-forming agent is added; and stirring, solvent evaporating, drying, pickling, washing, and drying processes are carried out, such that the membrane is prepared. The membrane provided by the invention has the advantages such as low cost, excellent performances, simple preparation processes, and the like. The membrane can be widely applied in fields such as chemical engineering, pharmacy, water treatment, and the like.
Description
Technical field
The present invention relates to a kind of polypropylene film and preparation method thereof, particularly relate to a kind of nano aperture structure polypropylene film and preparation method thereof that has.
Background technology
Along with the appearance with various function new membrane, membrane separation technique develops rapidly, and it mainly is used in the fields such as biology, medicine, environmental protection, food, the energy, desalinization, wastewater treatment.Membrane separation technique compare with other isolation technics also have the efficient height, technique is simple, without phase transformation, the advantages such as the physico-chemical property, the equipment operating that do not change filtrate can carry out at normal temperatures, energy-saving and emission-reduction, therefore be applied in the emerging industry gradually.
The core technology basis of membrane separation technique is membrane material, and it mainly is divided into inoranic membrane and organic polymer films two large classes, and the film with ultrafiltration and micro-filtration function is most widely used, and general polymer membrane is occupied an leading position.Early stage polymer film is cellulose acetate (CA), but facile hydrolysis under alkaline environment is arranged, the pH scope of application only 4～7, and the shortcomings such as not anti-bacterium and microorganism.Along with the present membrane materials such as existing polysulfones (PS), Kynoar (PVDF), polyether sulfone (PES), polyacrylonitrile (PAN) of the development of Polymer Industry.Although they have good performance, because cost of material is relatively high, cause the manufacturing cost of film higher, limited it and used more widely.Therefore, people are seeking function admirable always, and cheap membrane material is to satisfy the needs of large-scale application.Document discloses a kind of preparation method of polyvinyl chloride alloy ultrafiltration membrane.It is dissolved in polyvinyl chloride, multiple copolymer, pore-foaming agent co-blended in the organic solvent, and carries out film forming; Film is immersed in the solidification liquid, by dry-wet phase inversion gel film forming; Again the polychloroethylene film alloy ultrafiltration membrane of gel solidification carried out hydrophilicity-imparting treatment, and after cleaning, drying, make finished product.Document discloses a kind of preparation method of ultra filtration membrane in hollow fiber made from PVC with high flux.Get film liquid after specifically polyvinyl chloride, solvent and additive being mixed, again film liquid is injected into film forming in the distilled water by shower nozzle simultaneously in the inner gel medium.This high flux polychloroethylene film voidage reaches more than 90%, and pure water flux reaches 400L/ (h.m
2) more than.
The present invention utilizes the source abundant, cheap, have the new traditional macromolecular material of good spy, simultaneously its polypropylene that also has one of the three large synthetic resin of the advantages such as anti-bacterium, acid and alkali-resistance, resistance to chemical attack is that raw material prepares the membrane material with nano aperture structure.
Summary of the invention
The invention provides a kind of nano aperture structure polypropylene film that has, it is characterized in that the mass percent of film consists of: polypropylene 65～80%, organic solvent are 15～34%, and pore-foaming agent is 1～5%; The aperture of film is at 50～1000nm, and percent opening is 40～60%.
The invention provides a kind of preparation method with nano aperture structure polypropylene film, it is characterized in that: described film is take polypropylene as matrix, through organic solvent dissolution, add the lipophile pore-foaming agent, make through stirring, solvent evaporation, drying, pickling, washing and baking operation again; Concrete steps are:
The first step: the continuous stirring and dissolving of PP GRANULES warp in organic solvent, is added the pore-foaming agent with oil-wet behavior again, stir fully dispersion mixing; With the mixed solution masking, and 60～80 ℃ of lower vacuum drying film forming;
Second step: polypropylene film is positioned over soaks 3～24 hours in the dilute acid solution, the polypropylene film that will have again the nano aperture structure makes after clear water washing, drying has nano aperture structure polypropylene film.
Described lipophile pore-foaming agent is a kind of or its combination in nano-calcium carbonate, nano-calcium carbonate magnesium, the nanometer grade silica.
Described organic solvent is a kind of or its combination in carbon trichloride, carbon tetrachloride, the oxolane.
Compared with prior art, the present invention preparation have that nano aperture structure polypropylene film has that cost is low, the advantage such as function admirable, preparation technology are simple, can be widely used in the fields such as chemical industry, medicine, water treatment.
The specific embodiment
The present invention is further described below in conjunction with the concrete preparation process with nano aperture structure polypropylene film: present embodiment is implemented under take technical solution of the present invention as prerequisite; provided detailed embodiment and concrete operating process, but protection scope of the present invention is not limited to following embodiment.
Embodiment 1
Take by weighing polypropylene 50g, carbon tetrachloride 20g, the nano-calcium carbonate 1g of oleophylic modification.Under agitation polypropylene is dissolved in the carbon tetrachloride solvent, after fully dissolving, again nano-calcium carbonate slowly is distributed in the mentioned solution.After fully stirring 5h, solution film forming, 70 ℃ of vacuum drying are made semi-finished product.Semi-finished product are impregnated in 5% the watery hydrochloric acid, soak after 3 hours with the clear water washing, make finished product 60 ℃ of lower dryings again.
The finished product percent opening is about 40%, and the aperture is about 300nm.
Embodiment 2
Take by weighing polypropylene 50g, carbon tetrachloride 20g, the nano-calcium carbonate 3g of oleophylic modification.Under agitation polypropylene is dissolved in the carbon tetrachloride solvent, after fully dissolving, again nano-calcium carbonate slowly is distributed in the mentioned solution.After fully stirring 5h, solution film forming, 70 ℃ of vacuum drying are made semi-finished product.Semi-finished product are impregnated in 5% the watery hydrochloric acid, soak after 3 hours with the clear water washing, make finished product 60 ℃ of lower dryings again.
The finished product percent opening is about 52%, and the aperture is about 600nm.
Embodiment 3
Take by weighing polypropylene 50g, carbon tetrachloride 20g, the nano-calcium carbonate 5g of oleophylic modification.Under agitation polypropylene is dissolved in the carbon tetrachloride solvent, after fully dissolving, again nano-calcium carbonate slowly is distributed in the mentioned solution.After fully stirring 5h, solution film forming, 70 ℃ of vacuum drying are made semi-finished product.Semi-finished product are impregnated in 5% the watery hydrochloric acid, soak after 3 hours with the clear water washing, make finished product 60 ℃ of lower dryings again.
The finished product percent opening is about 60%, and the aperture is about 900nm.
Embodiment 4
Take by weighing polypropylene 50g, carbon tetrachloride 20g, the nano-calcium carbonate magnesium 3g of oleophylic modification.Under agitation polypropylene is dissolved in the carbon tetrachloride solvent, after fully dissolving, again nano-calcium carbonate slowly is distributed in the mentioned solution.After fully stirring 5h, solution film forming, 70 ℃ of vacuum drying are made semi-finished product.Semi-finished product are impregnated in 5% the watery hydrochloric acid, soak after 3 hours with the clear water washing, make finished product 60 ℃ of lower dryings again.
The finished product percent opening is about 48%, and the aperture is about 700nm.
Embodiment 5
Take by weighing polypropylene 50g, carbon tetrachloride 20g, the nano-calcium carbonate magnesium 5g of oleophylic modification.Under agitation polypropylene is dissolved in the carbon tetrachloride solvent, after fully dissolving, again nano-calcium carbonate slowly is distributed in the mentioned solution.After fully stirring 5h, solution film forming, 70 ℃ of vacuum drying are made semi-finished product.Semi-finished product are impregnated in 5% the watery hydrochloric acid, soak after 3 hours with the clear water washing, make finished product 60 ℃ of lower dryings again.
The finished product percent opening is about 60%, and the aperture is about 1000nm.
Embodiment 6
Take by weighing polypropylene 50g, carbon tetrachloride 20g, the nanometer grade silica 5g of oleophylic modification.Under agitation polypropylene is dissolved in the carbon tetrachloride solvent, after fully dissolving, again nano-calcium carbonate slowly is distributed in the mentioned solution.After fully stirring 5h, solution film forming, 70 ℃ of vacuum drying are made semi-finished product.Semi-finished product are impregnated in 5% the diluted hydrofluoric acid, soak after 3 hours with the clear water washing, make finished product 60 ℃ of lower dryings again.
The finished product percent opening is about 54%, and the aperture is about 1000nm.
Claims (4)
1. one kind has nano aperture structure polypropylene film, it is characterized in that the mass percent of film consists of: polypropylene 65～80%, organic solvent are 15～34%, and pore-foaming agent is 1～5%; The aperture of film is at 50～1000nm, and percent opening is 40～60%.
2. described a kind of preparation method with nano aperture structure polypropylene film according to claim 1, it is characterized in that, described film is take polypropylene as matrix, through organic solvent dissolution, add the lipophile pore-foaming agent, make through stirring, solvent evaporation, drying, pickling, washing and baking operation again; Concrete steps are:
The first step: the continuous stirring and dissolving of PP GRANULES warp in organic solvent, is added the pore-foaming agent with oil-wet behavior again, stir fully dispersion mixing; With the mixed solution masking, and 60～80 ℃ of lower vacuum drying film forming;
Second step: polypropylene film is positioned over soaks 3～24 hours in the dilute acid solution, the polypropylene film that will have again the nano aperture structure makes after clear water washing, drying has nano aperture structure polypropylene film.
3. described a kind of preparation method with nano aperture structure polypropylene film according to claim 2 is characterized in that described lipophile pore-foaming agent is a kind of or its combination in nano-calcium carbonate, nano-calcium carbonate magnesium, the nanometer grade silica.
4. described a kind of preparation method with nano aperture structure polypropylene film according to claim 2 is characterized in that described organic solvent is a kind of or its combination in carbon trichloride, carbon tetrachloride, the oxolane.
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| CN201110272668.8A CN102989328B (en) | 2011-09-15 | 2011-09-15 | Polypropylene film with nano-pore structure, and preparation method thereof |
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| CN102989328A true CN102989328A (en) | 2013-03-27 |
| CN102989328B CN102989328B (en) | 2015-01-21 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105001512A (en) * | 2015-07-01 | 2015-10-28 | 中国科学院宁波材料技术与工程研究所 | Open-cell polymer foam material and preparation method therefor |
| CN106252564A (en) * | 2016-09-06 | 2016-12-21 | 深圳市星源材质科技股份有限公司 | A kind of preparation method of high puncture strength lithium ion battery separator |
| CN108144456A (en) * | 2016-12-02 | 2018-06-12 | 中国科学院大连化学物理研究所 | A kind of preparation of polytetrafluoroethylhollow hollow fiber membrane and film and membrane contactor and application |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003175321A (en) * | 2001-10-05 | 2003-06-24 | Asahi Medical Co Ltd | Method for manufacturing hollow fiber membrane |
| CN1504257A (en) * | 2002-11-29 | 2004-06-16 | 中国科学院生态环境研究中心 | Preparation method of high-flux porous membrane |
| CN1597073A (en) * | 2004-08-06 | 2005-03-23 | 天津科技大学 | Method of preparing polypropylene plate micropore membrane using thermo phase separation |
| CN1718627A (en) * | 2005-07-13 | 2006-01-11 | 南京工业大学 | Polypropylene microporous membrane and preparation method thereof |
| CN101245150A (en) * | 2007-05-08 | 2008-08-20 | 中国科学院化学研究所 | Asymmetry polypropylene porous film and process for producing same |
| CN102179187A (en) * | 2010-12-10 | 2011-09-14 | 顾方明 | Polyvinylidene fluoride ultrafiltration membrane and preparation method thereof |
-
2011
- 2011-09-15 CN CN201110272668.8A patent/CN102989328B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003175321A (en) * | 2001-10-05 | 2003-06-24 | Asahi Medical Co Ltd | Method for manufacturing hollow fiber membrane |
| CN1504257A (en) * | 2002-11-29 | 2004-06-16 | 中国科学院生态环境研究中心 | Preparation method of high-flux porous membrane |
| CN1597073A (en) * | 2004-08-06 | 2005-03-23 | 天津科技大学 | Method of preparing polypropylene plate micropore membrane using thermo phase separation |
| CN1718627A (en) * | 2005-07-13 | 2006-01-11 | 南京工业大学 | Polypropylene microporous membrane and preparation method thereof |
| CN101245150A (en) * | 2007-05-08 | 2008-08-20 | 中国科学院化学研究所 | Asymmetry polypropylene porous film and process for producing same |
| CN102179187A (en) * | 2010-12-10 | 2011-09-14 | 顾方明 | Polyvinylidene fluoride ultrafiltration membrane and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 罗本喆: "纳米碳酸钙/庚二酸复合成核剂对热致相分离法制备聚丙烯微孔膜的影响", 《高分子学报》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105001512A (en) * | 2015-07-01 | 2015-10-28 | 中国科学院宁波材料技术与工程研究所 | Open-cell polymer foam material and preparation method therefor |
| CN105001512B (en) * | 2015-07-01 | 2017-06-27 | 中国科学院宁波材料技术与工程研究所 | A kind of open cell polymer foams and preparation method thereof |
| CN106252564A (en) * | 2016-09-06 | 2016-12-21 | 深圳市星源材质科技股份有限公司 | A kind of preparation method of high puncture strength lithium ion battery separator |
| CN108144456A (en) * | 2016-12-02 | 2018-06-12 | 中国科学院大连化学物理研究所 | A kind of preparation of polytetrafluoroethylhollow hollow fiber membrane and film and membrane contactor and application |
| CN108144456B (en) * | 2016-12-02 | 2021-06-04 | 中国科学院大连化学物理研究所 | Preparation of polytetrafluoroethylene hollow fiber membrane, membrane contactor and application |
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